NFL San Francisco 49ers Chair Pad, Clear 36" x 48" with 20" x 10" Lip is best for workspaces with minimal rolling area Protects commercial style carpets up to 1/8" thick, without padding Cleated mat is easy to handle and holds mat securely in place Straight edge 85 mil (.085") Thick 36" x 48" with 20" x 10" Lip is best for workspaces with minimal rolling area